Method for making aromatic bis(ether dicarboxylic acid)

Details Method for making aromatic bis(ether dicarboxylic acid) Method for making aromatic bis(ether dicarboxylic acid)

1975-09-11

1977-01-25

Morganstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603434, 260516, C07C 5100

Patent

active

040051340

ABSTRACT:
A method is provided for making aromatic bis(ether dicarboxylic acid) useful for making high performance injection moldable polyetherimides. An aromatic bis(ether N-organo phthalimide) is hydrolyzed directly to the corresponding tetra-acid by heating the aromatic bis(ehter N-organo phthalimide) in a closed system in the presence of acetic acid, water, and a mineral acid.

REFERENCES:
patent: 3247208 (1966-04-01), Schenker
patent: 3875208 (1975-04-01), Cohen et al.
patent: 3879428 (1975-04-01), Heath et al.
patent: 3903101 (1975-09-01), Yoshida et al.
Weygand, "Prep. Org. Chem.," p. 450, John Wiley & Sons (1972).
Moller, "Chem. of Org. Comp.," 3rd. Edition, Edition, p. 604, Saunders (1965).

Affiliated with

Also associated with

Rating

Method for making aromatic bis(ether dicarboxylic acid) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making aromatic bis(ether dicarboxylic acid), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making aromatic bis(ether dicarboxylic acid) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1478691